n8n
Version:
n8n Workflow Automation Tool
45 lines • 2.13 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.VariableRequirementsExtractor = void 0;
const di_1 = require("@n8n/di");
const VARS_REFERENCE_PATTERN = /\$vars\s*(?:\.\s*([A-Za-z_][A-Za-z0-9_]*)|\[\s*(?:'([^']+)'|"([^"]+)")\s*\])/g;
let VariableRequirementsExtractor = class VariableRequirementsExtractor {
extract(workflow) {
const names = new Set();
for (const node of workflow.nodes ?? []) {
this.scan(node.parameters, names);
}
this.scan(workflow.settings, names);
return [...names].map((variableName) => ({ workflowId: workflow.id, variableName }));
}
scan(value, names) {
if (typeof value === 'string') {
for (const match of value.matchAll(VARS_REFERENCE_PATTERN)) {
const name = match[1] ?? match[2] ?? match[3];
if (name)
names.add(name);
}
return;
}
if (Array.isArray(value)) {
for (const item of value)
this.scan(item, names);
return;
}
if (value !== null && typeof value === 'object') {
for (const nested of Object.values(value))
this.scan(nested, names);
}
}
};
exports.VariableRequirementsExtractor = VariableRequirementsExtractor;
exports.VariableRequirementsExtractor = VariableRequirementsExtractor = __decorate([
(0, di_1.Service)()
], VariableRequirementsExtractor);
//# sourceMappingURL=variable-requirements.extractor.js.map